X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=notmuch-show.c;h=22fa655ad20d8deea55297af4616c2cec7e292d0;hp=afbd9d06848beb044fb5632725cd100e75439e47;hb=60ac94fe58635f9c40724afa0f35965fc9ff1afc;hpb=6da306b40a5ba8293f2412b1ab07127ac3f055ca

diff --git a/notmuch-show.c b/notmuch-show.c
index afbd9d06..22fa655a 100644
--- a/notmuch-show.c
+++ b/notmuch-show.c
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see http://www.gnu.org/licenses/ .
+ * along with this program.  If not, see https://www.gnu.org/licenses/ .
  *
  * Author: Carl Worth <cworth@cworth.org>
  */
@@ -32,16 +32,17 @@ static const notmuch_show_format_t format_text = {
 };
 
 static notmuch_status_t
-format_part_json_entry (const void *ctx, sprinter_t *sp, mime_node_t *node,
-			int indent, const notmuch_show_params_t *params);
+format_part_sprinter_entry (const void *ctx, sprinter_t *sp, mime_node_t *node,
+			    int indent, const notmuch_show_params_t *params);
 
 static const notmuch_show_format_t format_json = {
     .new_sprinter = sprinter_json_create,
-    .message_set_start = "[",
-    .part = format_part_json_entry,
-    .message_set_sep = ", ",
-    .message_set_end = "]",
-    .null_message = "null"
+    .part = format_part_sprinter_entry,
+};
+
+static const notmuch_show_format_t format_sexp = {
+    .new_sprinter = sprinter_sexp_create,
+    .part = format_part_sprinter_entry,
 };
 
 static notmuch_status_t
@@ -109,35 +110,48 @@ _get_one_line_summary (const void *ctx, notmuch_message_t *message)
 			    from, relative_date, tags);
 }
 
+/* Emit a sequence of key/value pairs for the metadata of message.
+ * The caller should begin a map before calling this. */
 static void
-format_message_json (const void *ctx, notmuch_message_t *message)
+format_message_sprinter (sprinter_t *sp, notmuch_message_t *message)
 {
+    /* Any changes to the JSON or S-Expression format should be
+     * reflected in the file devel/schemata. */
+
+    void *local = talloc_new (NULL);
     notmuch_tags_t *tags;
-    int first = 1;
-    void *ctx_quote = talloc_new (ctx);
     time_t date;
     const char *relative_date;
 
+    sp->map_key (sp, "id");
+    sp->string (sp, notmuch_message_get_message_id (message));
+
+    sp->map_key (sp, "match");
+    sp->boolean (sp, notmuch_message_get_flag (message, NOTMUCH_MESSAGE_FLAG_MATCH));
+
+    sp->map_key (sp, "excluded");
+    sp->boolean (sp, notmuch_message_get_flag (message, NOTMUCH_MESSAGE_FLAG_EXCLUDED));
+
+    sp->map_key (sp, "filename");
+    sp->string (sp, notmuch_message_get_filename (message));
+
+    sp->map_key (sp, "timestamp");
     date = notmuch_message_get_date (message);
-    relative_date = notmuch_time_relative_date (ctx, date);
+    sp->integer (sp, date);
 
-    printf ("\"id\": %s, \"match\": %s, \"excluded\": %s, \"filename\": %s, \"timestamp\": %ld, \"date_relative\": \"%s\", \"tags\": [",
-	    json_quote_str (ctx_quote, notmuch_message_get_message_id (message)),
-	    notmuch_message_get_flag (message, NOTMUCH_MESSAGE_FLAG_MATCH) ? "true" : "false",
-	    notmuch_message_get_flag (message, NOTMUCH_MESSAGE_FLAG_EXCLUDED) ? "true" : "false",
-	    json_quote_str (ctx_quote, notmuch_message_get_filename (message)),
-	    date, relative_date);
+    sp->map_key (sp, "date_relative");
+    relative_date = notmuch_time_relative_date (local, date);
+    sp->string (sp, relative_date);
 
+    sp->map_key (sp, "tags");
+    sp->begin_list (sp);
     for (tags = notmuch_message_get_tags (message);
 	 notmuch_tags_valid (tags);
 	 notmuch_tags_move_to_next (tags))
-    {
-         printf("%s%s", first ? "" : ",",
-               json_quote_str (ctx_quote, notmuch_tags_get (tags)));
-         first = 0;
-    }
-    printf("], ");
-    talloc_free (ctx_quote);
+	sp->string (sp, notmuch_tags_get (tags));
+    sp->end (sp);
+
+    talloc_free (local);
 }
 
 /* Extract just the email address from the contents of a From:
@@ -199,11 +213,15 @@ _is_from_line (const char *line)
 }
 
 void
-format_headers_json (sprinter_t *sp, GMimeMessage *message,
-		     notmuch_bool_t reply)
+format_headers_sprinter (sprinter_t *sp, GMimeMessage *message,
+			 notmuch_bool_t reply)
 {
+    /* Any changes to the JSON or S-Expression format should be
+     * reflected in the file devel/schemata. */
+
     InternetAddressList *recipients;
     const char *recipients_string;
+    const char *reply_to_string;
 
     sp->begin_map (sp);
 
@@ -227,6 +245,19 @@ format_headers_json (sprinter_t *sp, GMimeMessage *message,
 	sp->string (sp, recipients_string);
     }
 
+    recipients = g_mime_message_get_recipients (message, GMIME_RECIPIENT_TYPE_BCC);
+    recipients_string = internet_address_list_to_string (recipients, 0);
+    if (recipients_string) {
+	sp->map_key (sp, "Bcc");
+	sp->string (sp, recipients_string);
+    }
+
+    reply_to_string = g_mime_message_get_reply_to (message);
+    if (reply_to_string) {
+	sp->map_key (sp, "Reply-To");
+	sp->string (sp, reply_to_string);
+    }
+
     if (reply) {
 	sp->map_key (sp, "In-reply-to");
 	sp->string (sp, g_mime_object_get_header (GMIME_OBJECT (message), "In-reply-to"));
@@ -303,7 +334,7 @@ show_text_part_content (GMimeObject *part, GMimeStream *stream_out,
 	g_object_unref(stream_filter);
 }
 
-#ifdef GMIME_ATLEAST_26
+/* Get signature status string (GMime 2.6) */
 static const char*
 signature_status_to_string (GMimeSignatureStatus x)
 {
@@ -317,28 +348,14 @@ signature_status_to_string (GMimeSignatureStatus x)
     }
     return "unknown";
 }
-#else
-static const char*
-signer_status_to_string (GMimeSignerStatus x)
-{
-    switch (x) {
-    case GMIME_SIGNER_STATUS_NONE:
-	return "none";
-    case GMIME_SIGNER_STATUS_GOOD:
-	return "good";
-    case GMIME_SIGNER_STATUS_BAD:
-	return "bad";
-    case GMIME_SIGNER_STATUS_ERROR:
-	return "error";
-    }
-    return "unknown";
-}
-#endif
 
-#ifdef GMIME_ATLEAST_26
+/* Signature status sprinter (GMime 2.6) */
 static void
-format_part_sigstatus_json (sprinter_t *sp, mime_node_t *node)
+format_part_sigstatus_sprinter (sprinter_t *sp, mime_node_t *node)
 {
+    /* Any changes to the JSON or S-Expression format should be
+     * reflected in the file devel/schemata. */
+
     GMimeSignatureList *siglist = node->sig_list;
 
     sp->begin_list (sp);
@@ -407,70 +424,6 @@ format_part_sigstatus_json (sprinter_t *sp, mime_node_t *node)
 
     sp->end (sp);
 }
-#else
-static void
-format_part_sigstatus_json (sprinter_t *sp, mime_node_t *node)
-{
-    const GMimeSignatureValidity* validity = node->sig_validity;
-
-    sp->begin_list (sp);
-
-    if (!validity) {
-	sp->end (sp);
-	return;
-    }
-
-    const GMimeSigner *signer = g_mime_signature_validity_get_signers (validity);
-    while (signer) {
-	sp->begin_map (sp);
-
-	/* status */
-	sp->map_key (sp, "status");
-	sp->string (sp, signer_status_to_string (signer->status));
-
-	if (signer->status == GMIME_SIGNER_STATUS_GOOD)
-	{
-	    if (signer->fingerprint) {
-		sp->map_key (sp, "fingerprint");
-		sp->string (sp, signer->fingerprint);
-	    }
-	    /* these dates are seconds since the epoch; should we
-	     * provide a more human-readable format string? */
-	    if (signer->created) {
-		sp->map_key (sp, "created");
-		sp->integer (sp, signer->created);
-	    }
-	    if (signer->expires) {
-		sp->map_key (sp, "expires");
-		sp->integer (sp, signer->expires);
-	    }
-	    /* output user id only if validity is FULL or ULTIMATE. */
-	    /* note that gmime is using the term "trust" here, which
-	     * is WRONG.  It's actually user id "validity". */
-	    if ((signer->name) && (signer->trust)) {
-		if ((signer->trust == GMIME_SIGNER_TRUST_FULLY) || (signer->trust == GMIME_SIGNER_TRUST_ULTIMATE)) {
-		    sp->map_key (sp, "userid");
-		    sp->string (sp, signer->name);
-		}
-           }
-       } else {
-           if (signer->keyid) {
-	       sp->map_key (sp, "keyid");
-	       sp->string (sp, signer->keyid);
-	   }
-       }
-       if (signer->errors != GMIME_SIGNER_ERROR_NONE) {
-	   sp->map_key (sp, "errors");
-	   sp->integer (sp, signer->errors);
-       }
-
-       sp->end (sp);
-       signer = signer->next;
-    }
-
-    sp->end (sp);
-}
-#endif
 
 static notmuch_status_t
 format_part_text (const void *ctx, sprinter_t *sp, mime_node_t *node,
@@ -503,7 +456,8 @@ format_part_text (const void *ctx, sprinter_t *sp, mime_node_t *node,
 	    g_mime_part_get_filename (GMIME_PART (node->part)) : NULL;
 
 	if (disposition &&
-	    strcmp (disposition->disposition, GMIME_DISPOSITION_ATTACHMENT) == 0)
+	    strcasecmp (g_mime_content_disposition_get_disposition (disposition),
+			GMIME_DISPOSITION_ATTACHMENT) == 0)
 	    part_type = "attachment";
 	else
 	    part_type = "part";
@@ -565,26 +519,51 @@ format_part_text (const void *ctx, sprinter_t *sp, mime_node_t *node,
     return NOTMUCH_STATUS_SUCCESS;
 }
 
+static void
+format_omitted_part_meta_sprinter (sprinter_t *sp, GMimeObject *meta, GMimePart *part)
+{
+    const char *content_charset = g_mime_object_get_content_type_parameter (meta, "charset");
+    const char *cte = g_mime_object_get_header (meta, "content-transfer-encoding");
+    GMimeDataWrapper *wrapper = g_mime_part_get_content_object (part);
+    GMimeStream *stream = g_mime_data_wrapper_get_stream (wrapper);
+    ssize_t content_length = g_mime_stream_length (stream);
+
+    if (content_charset != NULL) {
+	sp->map_key (sp, "content-charset");
+	sp->string (sp, content_charset);
+    }
+    if (cte != NULL) {
+	sp->map_key (sp, "content-transfer-encoding");
+	sp->string (sp, cte);
+    }
+    if (content_length >= 0) {
+	sp->map_key (sp, "content-length");
+	sp->integer (sp, content_length);
+    }
+}
+
 void
-format_part_json (const void *ctx, sprinter_t *sp, mime_node_t *node,
-		  notmuch_bool_t first, notmuch_bool_t output_body)
+format_part_sprinter (const void *ctx, sprinter_t *sp, mime_node_t *node,
+		      notmuch_bool_t first, notmuch_bool_t output_body,
+		      notmuch_bool_t include_html)
 {
-    /* Any changes to the JSON format should be reflected in the file
-     * devel/schemata. */
+    /* Any changes to the JSON or S-Expression format should be
+     * reflected in the file devel/schemata. */
 
     if (node->envelope_file) {
-	printf ("{");
-	format_message_json (ctx, node->envelope_file);
+	sp->begin_map (sp);
+	format_message_sprinter (sp, node->envelope_file);
 
-	printf ("\"headers\": ");
-	format_headers_json (sp, GMIME_MESSAGE (node->part), FALSE);
+	sp->map_key (sp, "headers");
+	format_headers_sprinter (sp, GMIME_MESSAGE (node->part), FALSE);
 
 	if (output_body) {
-	    printf (", \"body\": [");
-	    format_part_json (ctx, sp, mime_node_child (node, 0), first, TRUE);
-	    printf ("]");
+	    sp->map_key (sp, "body");
+	    sp->begin_list (sp);
+	    format_part_sprinter (ctx, sp, mime_node_child (node, 0), first, TRUE, include_html);
+	    sp->end (sp);
 	}
-	printf ("}");
+	sp->end (sp);
 	return;
     }
 
@@ -616,7 +595,7 @@ format_part_json (const void *ctx, sprinter_t *sp, mime_node_t *node,
 
     if (node->verify_attempted) {
 	sp->map_key (sp, "sigstatus");
-	format_part_sigstatus_json (sp, node);
+	format_part_sigstatus_sprinter (sp, node);
     }
 
     sp->map_key (sp, "content-type");
@@ -636,20 +615,16 @@ format_part_json (const void *ctx, sprinter_t *sp, mime_node_t *node,
 	/* For non-HTML text parts, we include the content in the
 	 * JSON. Since JSON must be Unicode, we handle charset
 	 * decoding here and do not report a charset to the caller.
-	 * For text/html parts, we do not include the content. If a
-	 * caller is interested in text/html parts, it should retrieve
-	 * them separately and they will not be decoded. Since this
-	 * makes charset decoding the responsibility on the caller, we
+	 * For text/html parts, we do not include the content unless
+	 * the --include-html option has been passed. If a html part
+	 * is not included, it can be requested directly. This makes
+	 * charset decoding the responsibility on the caller so we
 	 * report the charset for text/html parts.
 	 */
-	if (g_mime_content_type_is_type (content_type, "text", "html")) {
-	    const char *content_charset = g_mime_object_get_content_type_parameter (meta, "charset");
-
-	    if (content_charset != NULL) {
-		sp->map_key (sp, "content-charset");
-		sp->string (sp, content_charset);
-	    }
-	} else if (g_mime_content_type_is_type (content_type, "text", "*")) {
+	if (g_mime_content_type_is_type (content_type, "text", "*") &&
+	    (include_html ||
+	     ! g_mime_content_type_is_type (content_type, "text", "html")))
+	{
 	    GMimeStream *stream_memory = g_mime_stream_mem_new ();
 	    GByteArray *part_content;
 	    show_text_part_content (node->part, stream_memory, 0);
@@ -657,6 +632,8 @@ format_part_json (const void *ctx, sprinter_t *sp, mime_node_t *node,
 	    sp->map_key (sp, "content");
 	    sp->string_len (sp, (char *) part_content->data, part_content->len);
 	    g_object_unref (stream_memory);
+	} else {
+	    format_omitted_part_meta_sprinter (sp, meta, GMIME_PART (node->part));
 	}
     } else if (GMIME_IS_MULTIPART (node->part)) {
 	sp->map_key (sp, "content");
@@ -668,7 +645,7 @@ format_part_json (const void *ctx, sprinter_t *sp, mime_node_t *node,
 	sp->begin_map (sp);
 
 	sp->map_key (sp, "headers");
-	format_headers_json (sp, GMIME_MESSAGE (node->part), FALSE);
+	format_headers_sprinter (sp, GMIME_MESSAGE (node->part), FALSE);
 
 	sp->map_key (sp, "body");
 	sp->begin_list (sp);
@@ -676,7 +653,7 @@ format_part_json (const void *ctx, sprinter_t *sp, mime_node_t *node,
     }
 
     for (i = 0; i < node->nchildren; i++)
-	format_part_json (ctx, sp, mime_node_child (node, i), i == 0, TRUE);
+	format_part_sprinter (ctx, sp, mime_node_child (node, i), i == 0, TRUE, include_html);
 
     /* Close content structures */
     for (i = 0; i < nclose; i++)
@@ -686,11 +663,11 @@ format_part_json (const void *ctx, sprinter_t *sp, mime_node_t *node,
 }
 
 static notmuch_status_t
-format_part_json_entry (const void *ctx, sprinter_t *sp,
-			mime_node_t *node, unused (int indent),
-			const notmuch_show_params_t *params)
+format_part_sprinter_entry (const void *ctx, sprinter_t *sp,
+			    mime_node_t *node, unused (int indent),
+			    const notmuch_show_params_t *params)
 {
-    format_part_json (ctx, sp, node, TRUE, params->output_body);
+    format_part_sprinter (ctx, sp, node, TRUE, params->output_body, params->include_html);
 
     return NOTMUCH_STATUS_SUCCESS;
 }
@@ -830,15 +807,6 @@ format_part_raw (unused (const void *ctx), unused (sprinter_t *sp),
     return NOTMUCH_STATUS_SUCCESS;
 }
 
-static notmuch_status_t
-show_null_message (const notmuch_show_format_t *format)
-{
-    /* Output a null message. Currently empty for all formats except Json */
-    if (format->null_message)
-	printf ("%s", format->null_message);
-    return NOTMUCH_STATUS_SUCCESS;
-}
-
 static notmuch_status_t
 show_message (void *ctx,
 	      const notmuch_show_format_t *format,
@@ -873,23 +841,16 @@ show_messages (void *ctx,
     notmuch_message_t *message;
     notmuch_bool_t match;
     notmuch_bool_t excluded;
-    int first_set = 1;
     int next_indent;
     notmuch_status_t status, res = NOTMUCH_STATUS_SUCCESS;
 
-    if (format->message_set_start)
-	fputs (format->message_set_start, stdout);
+    sp->begin_list (sp);
 
     for (;
 	 notmuch_messages_valid (messages);
 	 notmuch_messages_move_to_next (messages))
     {
-	if (!first_set && format->message_set_sep)
-	    fputs (format->message_set_sep, stdout);
-	first_set = 0;
-
-	if (format->message_set_start)
-	    fputs (format->message_set_start, stdout);
+	sp->begin_list (sp);
 
 	message = notmuch_messages_get (messages);
 
@@ -904,12 +865,9 @@ show_messages (void *ctx,
 		res = status;
 	    next_indent = indent + 1;
 	} else {
-	    status = show_null_message (format);
+	    sp->null (sp);
 	}
 
-	if (!status && format->message_set_sep)
-	    fputs (format->message_set_sep, stdout);
-
 	status = show_messages (ctx,
 				format, sp,
 				notmuch_message_get_replies (message),
@@ -920,12 +878,10 @@ show_messages (void *ctx,
 
 	notmuch_message_destroy (message);
 
-	if (format->message_set_end)
-	    fputs (format->message_set_end, stdout);
+	sp->end (sp);
     }
 
-    if (format->message_set_end)
-	fputs (format->message_set_end, stdout);
+    sp->end (sp);
 
     return res;
 }
@@ -940,13 +896,22 @@ do_show_single (void *ctx,
 {
     notmuch_messages_t *messages;
     notmuch_message_t *message;
+    notmuch_status_t status;
+    unsigned int count;
 
-    if (notmuch_query_count_messages (query) != 1) {
-	fprintf (stderr, "Error: search term did not match precisely one message.\n");
+    status = notmuch_query_count_messages_st (query, &count);
+    if (print_status_query ("notmuch show", query, status))
+	return 1;
+
+    if (count != 1) {
+	fprintf (stderr, "Error: search term did not match precisely one message (matched %d messages).\n", count);
 	return 1;
     }
 
-    messages = notmuch_query_search_messages (query);
+    status = notmuch_query_search_messages_st (query, &messages);
+    if (print_status_query ("notmuch show", query, status))
+	return 1;
+
     message = notmuch_messages_get (messages);
 
     if (message == NULL) {
@@ -971,13 +936,15 @@ do_show (void *ctx,
     notmuch_threads_t *threads;
     notmuch_thread_t *thread;
     notmuch_messages_t *messages;
-    int first_toplevel = 1;
     notmuch_status_t status, res = NOTMUCH_STATUS_SUCCESS;
 
-    if (format->message_set_start)
-	fputs (format->message_set_start, stdout);
+    status= notmuch_query_search_threads_st (query, &threads);
+    if (print_status_query ("notmuch show", query, status))
+	return 1;
+
+    sp->begin_list (sp);
 
-    for (threads = notmuch_query_search_threads (query);
+    for ( ;
 	 notmuch_threads_valid (threads);
 	 notmuch_threads_move_to_next (threads))
     {
@@ -989,10 +956,6 @@ do_show (void *ctx,
 	    INTERNAL_ERROR ("Thread %s has no toplevel messages.\n",
 			    notmuch_thread_get_thread_id (thread));
 
-	if (!first_toplevel && format->message_set_sep)
-	    fputs (format->message_set_sep, stdout);
-	first_toplevel = 0;
-
 	status = show_messages (ctx, format, sp, messages, 0, params);
 	if (status && !res)
 	    res = status;
@@ -1001,8 +964,7 @@ do_show (void *ctx,
 
     }
 
-    if (format->message_set_end)
-	fputs (format->message_set_end, stdout);
+    sp->end (sp);
 
     return res != NOTMUCH_STATUS_SUCCESS;
 }
@@ -1010,6 +972,7 @@ do_show (void *ctx,
 enum {
     NOTMUCH_FORMAT_NOT_SPECIFIED,
     NOTMUCH_FORMAT_JSON,
+    NOTMUCH_FORMAT_SEXP,
     NOTMUCH_FORMAT_TEXT,
     NOTMUCH_FORMAT_MBOX,
     NOTMUCH_FORMAT_RAW
@@ -1028,9 +991,8 @@ enum {
 };
 
 int
-notmuch_show_command (void *ctx, unused (int argc), unused (char *argv[]))
+notmuch_show_command (notmuch_config_t *config, int argc, char *argv[])
 {
-    notmuch_config_t *config;
     notmuch_database_t *notmuch;
     notmuch_query_t *query;
     char *query_string;
@@ -1043,8 +1005,10 @@ notmuch_show_command (void *ctx, unused (int argc), unused (char *argv[]))
 	.output_body = TRUE,
 	.crypto = {
 	    .verify = FALSE,
-	    .decrypt = FALSE
-	}
+	    .decrypt = FALSE,
+	    .gpgpath = NULL
+	},
+	.include_html = FALSE
     };
     int format_sel = NOTMUCH_FORMAT_NOT_SPECIFIED;
     int exclude = EXCLUDE_TRUE;
@@ -1054,9 +1018,11 @@ notmuch_show_command (void *ctx, unused (int argc), unused (char *argv[]))
 	{ NOTMUCH_OPT_KEYWORD, &format_sel, "format", 'f',
 	  (notmuch_keyword_t []){ { "json", NOTMUCH_FORMAT_JSON },
 				  { "text", NOTMUCH_FORMAT_TEXT },
+				  { "sexp", NOTMUCH_FORMAT_SEXP },
 				  { "mbox", NOTMUCH_FORMAT_MBOX },
 				  { "raw", NOTMUCH_FORMAT_RAW },
 				  { 0, 0 } } },
+	{ NOTMUCH_OPT_INT, &notmuch_format_version, "format-version", 0, 0 },
 	{ NOTMUCH_OPT_KEYWORD, &exclude, "exclude", 'x',
 	  (notmuch_keyword_t []){ { "true", EXCLUDE_TRUE },
 				  { "false", EXCLUDE_FALSE },
@@ -1070,14 +1036,16 @@ notmuch_show_command (void *ctx, unused (int argc), unused (char *argv[]))
 	{ NOTMUCH_OPT_BOOLEAN, &params.crypto.decrypt, "decrypt", 'd', 0 },
 	{ NOTMUCH_OPT_BOOLEAN, &params.crypto.verify, "verify", 'v', 0 },
 	{ NOTMUCH_OPT_BOOLEAN, &params.output_body, "body", 'b', 0 },
+	{ NOTMUCH_OPT_BOOLEAN, &params.include_html, "include-html", 0, 0 },
+	{ NOTMUCH_OPT_INHERIT, (void *) &notmuch_shared_options, NULL, 0, 0 },
 	{ 0, 0, 0, 0, 0 }
     };
 
     opt_index = parse_arguments (argc, argv, options, 1);
-    if (opt_index < 0) {
-	/* diagnostics already printed */
-	return 1;
-    }
+    if (opt_index < 0)
+	return EXIT_FAILURE;
+
+    notmuch_process_shared_options (argv[0]);
 
     /* decryption implies verification */
     if (params.crypto.decrypt)
@@ -1098,10 +1066,13 @@ notmuch_show_command (void *ctx, unused (int argc), unused (char *argv[]))
     case NOTMUCH_FORMAT_TEXT:
 	format = &format_text;
 	break;
+    case NOTMUCH_FORMAT_SEXP:
+	format = &format_sexp;
+	break;
     case NOTMUCH_FORMAT_MBOX:
 	if (params.part > 0) {
 	    fprintf (stderr, "Error: specifying parts is incompatible with mbox output format.\n");
-	    return 1;
+	    return EXIT_FAILURE;
 	}
 
 	format = &format_mbox;
@@ -1116,9 +1087,12 @@ notmuch_show_command (void *ctx, unused (int argc), unused (char *argv[]))
 	break;
     }
 
-    /* Default is entire-thread = FALSE except for format=json. */
+    notmuch_exit_if_unsupported_format ();
+
+    /* Default is entire-thread = FALSE except for format=json and
+     * format=sexp. */
     if (entire_thread == ENTIRE_THREAD_DEFAULT) {
-	if (format == &format_json)
+	if (format == &format_json || format == &format_sexp)
 	    entire_thread = ENTIRE_THREAD_TRUE;
 	else
 	    entire_thread = ENTIRE_THREAD_FALSE;
@@ -1129,47 +1103,53 @@ notmuch_show_command (void *ctx, unused (int argc), unused (char *argv[]))
 	    fprintf (stderr, "Warning: --body=false is incompatible with --part > 0. Disabling.\n");
 	    params.output_body = TRUE;
 	} else {
-	    if (format != &format_json)
-		fprintf (stderr, "Warning: --body=false only implemented for format=json\n");
+	    if (format != &format_json && format != &format_sexp)
+		fprintf (stderr,
+			 "Warning: --body=false only implemented for format=json and format=sexp\n");
 	}
     }
 
+    if (params.include_html &&
+        (format_sel != NOTMUCH_FORMAT_JSON && format_sel != NOTMUCH_FORMAT_SEXP)) {
+	fprintf (stderr, "Warning: --include-html only implemented for format=json and format=sexp\n");
+    }
+
     if (entire_thread == ENTIRE_THREAD_TRUE)
 	params.entire_thread = TRUE;
     else
 	params.entire_thread = FALSE;
 
-    config = notmuch_config_open (ctx, NULL, NULL);
-    if (config == NULL)
-	return 1;
-
-    query_string = query_string_from_args (ctx, argc-opt_index, argv+opt_index);
+    query_string = query_string_from_args (config, argc-opt_index, argv+opt_index);
     if (query_string == NULL) {
 	fprintf (stderr, "Out of memory\n");
-	return 1;
+	return EXIT_FAILURE;
     }
 
     if (*query_string == '\0') {
 	fprintf (stderr, "Error: notmuch show requires at least one search term.\n");
-	return 1;
+	return EXIT_FAILURE;
     }
 
+    params.crypto.gpgpath = notmuch_config_get_crypto_gpg_path (config);
+
     if (notmuch_database_open (notmuch_config_get_database_path (config),
 			       NOTMUCH_DATABASE_MODE_READ_ONLY, &notmuch))
-	return 1;
+	return EXIT_FAILURE;
+
+    notmuch_exit_if_unmatched_db_uuid (notmuch);
 
     query = notmuch_query_create (notmuch, query_string);
     if (query == NULL) {
 	fprintf (stderr, "Out of memory\n");
-	return 1;
+	return EXIT_FAILURE;
     }
 
     /* Create structure printer. */
-    sprinter = format->new_sprinter(ctx, stdout);
+    sprinter = format->new_sprinter(config, stdout);
 
     /* If a single message is requested we do not use search_excludes. */
     if (params.part >= 0)
-	ret = do_show_single (ctx, query, format, sprinter, &params);
+	ret = do_show_single (config, query, format, sprinter, &params);
     else {
 	/* We always apply set the exclude flag. The
 	 * exclude=true|false option controls whether or not we return
@@ -1188,12 +1168,12 @@ notmuch_show_command (void *ctx, unused (int argc), unused (char *argv[]))
 	    params.omit_excluded = FALSE;
 	}
 
-	ret = do_show (ctx, query, format, sprinter, &params);
+	ret = do_show (config, query, format, sprinter, &params);
     }
 
     notmuch_crypto_cleanup (&params.crypto);
     notmuch_query_destroy (query);
     notmuch_database_destroy (notmuch);
 
-    return ret;
+    return ret ? EXIT_FAILURE : EXIT_SUCCESS;
 }